package com.service.schedule.util;

import org.quartz.*;

import com.model.schedule.JobModel;
import com.model.schedule.ScheduleJob;

public class ScheduleUtils {
	/**
	 * 获取触发器key
	 */
	public static TriggerKey getTriggerKey(String jobId) {
		TriggerKey key = TriggerKey.triggerKey(jobId, jobId);
		return key;
	}

	/**
	 * 获取jobKey
	 */
	public static JobKey getJobKey(String jobId) {
		return JobKey.jobKey(jobId, jobId);
	}

	/**
	 * 获取表达式触发器
	 */
	public static CronTrigger getCronTrigger(Scheduler scheduler, String jobId) {
		try {
			return (CronTrigger) scheduler.getTrigger(getTriggerKey(jobId));
		} catch (SchedulerException e) {
			return null;
		}
	}

	/**
	 * 创建定时任务
	 */
	public static void createScheduleJob(Scheduler scheduler, JobModel scheduleJob) {
		try {
			// 构建job信息
			JobDetail jobDetail = JobBuilder.newJob(QuartzJob.class)
					.withIdentity(scheduleJob.getJobId(), scheduleJob.getJobId()).build();

			// 表达式调度构建器
			CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCronExpression())
					.withMisfireHandlingInstructionDoNothing();

			// 按新的cronExpression表达式构建一个新的trigger
			CronTrigger trigger = TriggerBuilder.newTrigger()
					.withIdentity(scheduleJob.getJobId(), scheduleJob.getJobId()).withSchedule(scheduleBuilder).build();

			// 放入参数，运行时的方法可以获取
			jobDetail.getJobDataMap().put(ScheduleJob.JOB_PARAM_KEY, scheduleJob);

			scheduler.scheduleJob(jobDetail, trigger);
			scheduler.start();
			// 暂停任务
			if (scheduleJob.getStatus() == Constant.SCHEDULE_STATUS_PAUSE) {
				pauseJob(scheduler, scheduleJob.getJobId());
			}
		} catch (SchedulerException e) {
			System.out.println("创建定时任务失败:" + e);
		}
	}

	/**
	 * 更新定时任务
	 */
	public static void updateScheduleJob(Scheduler scheduler, JobModel scheduleJob) {
		try {
			TriggerKey triggerKey = getTriggerKey(scheduleJob.getJobId());

			// 表达式调度构建器
			CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCronExpression())
					.withMisfireHandlingInstructionDoNothing();

			CronTrigger trigger = getCronTrigger(scheduler, scheduleJob.getJobId());

			// 按新的cronExpression表达式重新构建trigger
			trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();

			// 参数
			trigger.getJobDataMap().put(ScheduleJob.JOB_PARAM_KEY, scheduleJob);

			scheduler.rescheduleJob(triggerKey, trigger);
			scheduler.start();
			// 暂停任务
			if (scheduleJob.getStatus() == Constant.SCHEDULE_STATUS_PAUSE) {
				pauseJob(scheduler, scheduleJob.getJobId());
			}

		} catch (SchedulerException e) {

		}
	}

	/**
	 * 立即执行任务
	 */
	public static String run(Scheduler scheduler, JobModel scheduleJob) {
		String resString = "";
		try {
			// 参数
			JobDataMap dataMap = new JobDataMap();
			dataMap.put(ScheduleJob.JOB_PARAM_KEY, scheduleJob);
			scheduler.triggerJob(getJobKey(scheduleJob.getJobId()), dataMap);
		} catch (SchedulerException e) {
			resString = e.getMessage();
		}
		return resString;
	}

	/**
	 * @return void
	 * @author chengpunan
	 * @desc 暂停定时任务
	 * @date 2020/11/13 10:21
	 * @params [scheduler, jobId]
	 **/
	public static void pauseJob(Scheduler scheduler, String jobId) {
		try {
			scheduler.pauseJob(getJobKey(jobId));
		} catch (SchedulerException e) {

		}
	}

	/**
	 * 恢复任务
	 */
	public static void resumeJob(Scheduler scheduler, String jobId) {
		try {
			scheduler.resumeJob(getJobKey(jobId));
		} catch (SchedulerException e) {

		}
	}

	/**
	 * 删除定时任务
	 */
	public static void deleteScheduleJob(Scheduler scheduler, String jobId) {
		try {
			scheduler.deleteJob(getJobKey(jobId));
		} catch (SchedulerException e) {

		}
	}
}
